RQ00828 Software Developer Full Stack Senior

Required Skills:

• Strong hands-on experience with FHIR Subscription and SubscriptionTopic including topic definitions resource triggers filter criteria subscription status and lifecycle notification Bundles delivery channels heartbeat notifications and event retrieval.
  
• Senior-level experience developing Java and services REST APIs FHIR integrations event publishers and consumers and production application logic.
  
• Strong experience implementing FHIR Subscription and SubscriptionTopic workflows with AWS Lambda and asynchronous queues including notification Bundle handling retries dead-letter handling idempotency concurrency duplicate-event handling and replay.
  
• Strong React development experience building production applications that use SMART on FHIR launch authorization context scopes and FHIR API integration patterns.
  
• Hands-on experience with NextGen Connect (Mirth) HL7 v2 integration and Ontario digital health standards and provincial services including the Hospital Report Manager (HRM) Standard Provider Registry Client Registry and eReferral covering message transformation validation routing acknowledgements error handling conformance testing and production support.
  

Responsibilities:

• Assess polling-based integrations and workflows identify the clinical or application events that should trigger notifications and map each workflow to the appropriate FHIR SubscriptionTopic and Subscription behaviour.
  
• Define implement and maintain SubscriptionTopic resources including supported resource triggers event definitions filter parameters notification shapes and conformance requirements.
  
• Implement Subscription creation validation activation status management renewal deactivation delivery configuration heartbeat handling event retrieval and subscriber lifecycle controls.
  
• Design develop test and support Java and services that publish events manage subscriptions consume notification Bundles call FHIR APIs and route resulting actions to application workflows.
  
• Develop and maintain AWS Lambda functions and queue-based integrations for asynchronous event processing validation enrichment workflow coordination and downstream application updates.
  
• Implement reliable processing controls for idempotency duplicate detection retries dead-letter handling controlled concurrency ordering where required reconciliation replay and recovery.
  
• Develop and support React applications that use SMART on FHIR to present subscription-related workflows launch within supported contexts obtain authorized FHIR access and interact with FHIR resources and application APIs.
  
• Develop and maintain NextGen Connect (Mirth) channels that receive transform validate route and acknowledge HL7 v2 messages and connect those workflows to FHIR resources application services and Enterprise Pub/Sub events.
  
• Validate Subscription SubscriptionTopic notification Bundle and related FHIR resource instances against the applicable FHIR definitions The Agency profiles terminology and business rules.
  
• Implement event correlation structured logging metrics alerts audit records subscription health monitoring and operational dashboards so teams can trace processing across publishers Enterprise Pub/Sub subscribers and downstream applications.
  
• Create and maintain unit integration contract conformance interface regression end-to-end performance and failure-recovery tests covering FHIR subscription workflows backend services serverless processing HL7 v2 and React components.
  
• Apply secure configuration authentication authorization least-privilege access privacy-aware logging and appropriate handling of personal health information and prepare technical designs mappings runbooks and knowledge-transfer materials with project stakeholders.
  

Desired Skills:

• Experience implementing the FHIR R5 Subscription model or the R5 subscription backport for earlier FHIR releases including SubscriptionTopic rest-hook or websocket delivery status notifications heartbeat notifications and event retrieval.
  
• Experience with AWS messaging integration and observability services such as Amazon SQS Amazon SNS Amazon EventBridge Amazon API Gateway and Amazon CloudWatch.
  
• Experience with infrastructure as code automated build and deployment pipelines containerized workloads configuration management and automated security scanning.
  
• Experience defining versioned FHIR profiles event schemas interface contracts compatibility rules correlation identifiers and governance practices for shared enterprise integrations.
  
• Experience using NextGen Connect (Mirth) to integrate with Ontario digital health standards and provincial services including the Hospital Report Manager (HRM) Standard Provider Registry Client Registry and eReferral with hands-on responsibility for HL7 v2 transformation validation routing acknowledgements conformance testing and production support.
  

Required Competencies:

• Advanced FHIR Subscription and SubscriptionTopic experience including resource triggers filter criteria lifecycle and status management notification Bundles delivery channels heartbeat notifications event retrieval validation and conformance testing.
  
• FHIR Subscription and SubscriptionTopic implementation experience for event-driven clinical workflows including topic and event design subscription filters and lifecycle management notification Bundle processing asynchronous queue processing idempotency retries dead-letter handling duplicate-event handling observability replay and production troubleshooting using Java and AWS Lambda.
  
• React and SMART on FHIR experience including launch and authorization flows scopes context handling FHIR API integration accessible user-interface development automated testing and secure handling of clinical information.
  
• NextGen Connect (Mirth) HL7 v2 and Ontario digital health standards experience including the Hospital Report Manager (HRM) Standard Provider Registry Client Registry and eReferral covering message transformation validation routing acknowledgements error handling interface and conformance testing production support and integration with FHIR Java or serverless components.
  

Rated Criteria:

• Advanced FHIR Subscription and SubscriptionTopic experience including resource triggers filters lifecycle and status management notification Bundles delivery channels heartbeat notifications event retrieval validation and conformance testing. 25 Points
  
• Demonstrated FHIR Subscription and SubscriptionTopic implementation experience using Java AWS Lambda and asynchronous queues including topic and event design subscription filters and lifecycle management notification Bundle processing idempotency retries dead-letter handling duplicate-event handling replay observability and production troubleshooting. 25 Points
  
• React and SMART on FHIR experience including launch and authorization flows scopes context handling FHIR API integration accessible user-interface development and testing. 25 Points
  
• NextGen Connect (Mirth) and HL7 v2 integration experience including transformation validation routing acknowledgements error handling interface testing and integration with Ontario digital health standards and provincial services such as the Hospital Report Manager (HRM) Standard Provider Registry Client Registry and eReferral. 25 Points
  

Deliverables:

• FHIR SubscriptionTopic definitions and supporting artifacts that document event triggers supported filters notification content delivery expectations and conformance rules for assigned Enterprise Pub/Sub workflows.
  
• Subscription lifecycle components for creation validation activation status management renewal deactivation delivery configuration heartbeat handling event retrieval and subscriber support.
  
• Updated Agency applications and workflows that integrate with Enterprise Pub/Sub and replace assigned polling-based processes with FHIR subscription-driven event processing.
  
• Production-ready Java and services APIs publishers consumers adapters and integration components for managing subscriptions and processing FHIR events and notifications.
  
• AWS Lambda functions and queue-based processing components for validation enrichment retries dead-letter handling idempotency duplicate detection reconciliation replay and downstream updates.
  
• React components that use SMART on FHIR launch authorization context scopes and FHIR APIs to support the assigned subscription and application workflows.
  
• NextGen Connect (Mirth) channels and configurations for HL7 v2 ingestion transformation validation routing acknowledgement handling error management and integration with FHIR and event-processing components.
  
• FHIR profiles examples validation rules event and interface mappings contract tests conformance tests integration tests end-to-end tests and release-validation evidence.
  
• Structured logs metrics alerts dashboards subscription health monitoring audit records reconciliation controls incident diagnostics operational procedures and production-support runbooks.
  
• Technical designs API and interface specifications workflow documentation security and configuration notes deployment instructions demonstrations release-support materials and knowledge-transfer artifacts.
  

Must Haves:

• Advanced FHIR Subscription and SubscriptionTopic experience including resource triggers filters lifecycle and status management notification Bundles delivery channels heartbeat notifications event retrieval validation and conformance testing. 25 Points
  
• Demonstrated FHIR Subscription and SubscriptionTopic implementation experience using Java AWS Lambda and asynchronous queues including topic and event design subscription filters and lifecycle management notification Bundle processing idempotency retries dead-letter handling duplicate-event handling replay observability and production troubleshooting. 25 Points
  
• React and SMART on FHIR experience including launch and authorization flows scopes context handling FHIR API integration accessible user-interface development and testing. 25 Points
  
• NextGen Connect (Mirth) and HL7 v2 integration experience including transformation validation routing acknowledgements error handling interface testing and integration with Ontario digital health standards and provincial services such as the Hospital Report Manager (HRM) Standard Provider Registry Client Registry and eReferral. 25 Points